Rakuten.com Shopping has the Samsung Galaxy S IV GT-I9505 Factory Unlocked 16GB 4G/LTE Smartphone (White) for $550 with free shipping. Use coupon code REWARDME at final checkout to receive 16,470 Super Points ($165 store credit). Here's a general review of Samsung's new flagship phone. This unlocked international version works on GSM networks and requires a micro-SIM card from a carrier.
1.6 GHz Octa-Core CPU, 2600mAh battery, TouchWiz UI 5" HD Super AMOLED 1080p, Android 4.2.2, Gorilla Glass 3